JP2003309954A - Winding apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make a winding apparatus compact in size. <P>SOLUTION: A flier 5 provided rotatably around a fixed shaft 3 fixed to a fixing stand is rotated by a toothed belt. An inner shaft 4 is provided rotatably within the fixed shaft and is coupled with the flier, using a U-shaped plate, at the axial end face on the side of its motor core. A wire guide 8 is supported relatively rotatably on the inner shaft and is put in a stationary state to the fixed shaft, being magnetically attracted by magnets 16 and 17. The inner shaft and the flier are coupled with each other in a simple structure, thus the winder can be compactified; the axial length can be shortened because there is no need to provide a wire gide retaining mechanism; the run-out during rotation is suppressed; and also the moment of inertia becomes small, high-speed start and high-speed rotation become possible, so that the winding work time is shortened, and productivity can be enhanced. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winding device.

[0002]

2. Description of the Related Art For example, in Japanese Unexamined Patent Application Publication No. 2002-27714, a flyer shaft is rotatably supported by a main body of the apparatus, a wire insertion passage is provided at an axis of the flyer shaft, and an end portion in an axial direction of the flyer shaft is provided. A winding device with an integrated flyer is shown. Further, the wire guide holding member is rotatably supported by the main body of the apparatus, and the flyer shaft and the wire guide holding member are separately belt-driven and rotated in synchronization, and the wire guide holding member makes the wire guide freely rotatable. A wire guide holding mechanism is provided to hold the wire guide in a stationary state by supporting the wire guide.

[0003]

However, in the above winding device, since the wire guide holding member and the flyer that rotate independently of each other are arranged side by side in the axial direction, the winding device is a flyer. There is a problem that the winding device becomes large in size in the axial direction of the shaft and the winding device becomes large. Further, since the rotational position of the flyer shaft and the position of the flyer are apart from each other in the axial direction, there is a problem that the flyer shakes due to the rotation.

[0004]

In order to solve such problems and realize a winding device which can be made compact,
In the present invention, a motor core in which a flyer provided to feed a wire while rotating around a fixed axis and the wire fed from the flyer as the flyer rotates are fixedly supported by a motor support means. A wire guide for guiding the wire into a core slot of the inner shaft having a wire insertion path for guiding the wire to the flyer and coaxially rotatably provided in the fixed shaft. The inner shaft and the flyer are integrally connected via a connecting means.

By passing the wire through the inner shaft, it is possible to prevent centrifugal force from being generated in the wire due to rotation, and to prevent twisting of the wire and peeling of the film of the wire. According to the present invention, when the inner shaft thus configured is synchronized with the rotation of the flyer, the two are simply coupled without the need for another rotation mechanism for synchronization. The winding device can be made compact by simplification.

In particular, the connecting means rotates the spanning member spanned between the inner shaft and the flyer, and the inner shaft and the flyer and corresponding portions of the spanning member. According to the rotation direction engaging means that engages in the direction, for example, a groove for engaging the spanning member in the rotation direction is provided on the inner shaft, and the flyer and the spanning member are screwed together, Both can be connected, can be easily attached / detached, and workability is good.

At least one of the fixed shaft, the flyer, and the inner shaft may be composed of a plurality of parts. According to this, for example, when a pulley for connection with an external motor is provided on the outer peripheral surface of the flyer and the flyer is rotated by applying a belt to the pulley, the flyer is composed of a plurality of parts divided in the axial direction. , A bearing can be provided to support the combined parts. As a result, the position of the bearing is not limited to providing the bearing on the end face of the flyer, and the bearing can be freely set by providing the bearing at the intermediate portion in the axial direction, and the bearing can be supported by the bearing at a position corresponding to the midpoint in the width direction of the belt. You can Therefore, when a wide belt, for example, a toothed belt is used, the belt winding load can be prevented from deviating from the center of the bearing, the rotational accuracy can be improved, and runout can be eliminated. Can respond.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below in detail based on specific examples shown in the accompanying drawings.

FIG. 1 is a fragmentary front view of a winding device to which the present invention is applied, and FIG. 2 is a fragmentary plan view of the winding device. A block-shaped fixed stand 1 is erected on a fixed base (not shown), and a motor core 2 to be wound is located at a predetermined position on the side of the fixed stand 1. The motor core 2 has a motor shaft 2a.
Is held by a motor shaft support device (not shown) in a fixed state. Although only one side of the motor core 2 is shown in the figure, it is possible to arrange the same structure on the opposite side to perform winding at the same time, and illustration and description thereof will be omitted.

On the side surface of the fixed stand 1, a fixed shaft 3 whose axis is directed to the motor core 2 side is fixed by a screw in a protruding state. Although the fixed shaft 3 is shown as an integral body in the illustrated example, it may be composed of, for example, a plurality of parts that are screwed together, and is formed in a cylindrical shape having an axial through hole at its axis. . Inside the through hole of the fixed shaft 3, an inner shaft 4 is supported coaxially and rotatably at a proper position by a bearing. The inner shaft 4 is also shown as an integrated body in the illustrated example, but may be made up of a plurality of parts.

On the outer periphery of the fixed shaft 3, a flyer body 5a is rotatably provided at a proper position by a bearing. The flyer main body 5a is also shown as an integral body in the illustrated example, but may be composed of a plurality of parts. The flyer body 5a is integrally provided with a flyer arm 5b that extends obliquely outward so as to face the motor core 2 from a part of its outer peripheral surface. In this way, the flyer 5 is constructed. A toothed pulley 5c is formed on the fixed stand 1 side of the flyer main body 5a, and a toothed belt 6 for connecting to a drive pulley of a drive motor (not shown) is wound around the toothed pulley 5c. There is.

The inner shaft 4 is coaxially formed with a protrusion 4a which protrudes from the end surface of the fixed shaft 3 on the motor core 2 side toward the motor core 2 side by a predetermined amount. The protrusion 4a is provided with, for example, a bearing portion 7 in which a plurality of bearings are aligned and assembled, and the body portion of the wire guide 8 is fitted to the bearing portion 7. Therefore, the wire guide 8 is rotatably supported relative to the inner shaft 4.
The bearing hole 8a fitted into the bearing portion 7 of the wire guide 8 is formed with an inner diameter having a play that allows the bearing portion 7 to be inserted into and removed from the bearing portion 7.

Further, an axial hole is formed coaxially in the axial center of the inner shaft 4 so as to open to the fixed stand 1 side and reach a position corresponding to the end surface of the fixed shaft 3 on the motor core 2 side. There is. A wire guide pipe 9 as a wire insertion passage is coaxially inserted into the axial hole on the fixed stand 1 side, and a guide pulley 10 is rotatably provided on the motor core 2 side in the axial hole. Further, the wire guide pipe 11 is also mounted on the fixed stand 1 so as to be coaxially located corresponding to the wire guide pipe 9.

The wire W to be wound around the motor core 2 is drawn out from a wire storage portion (not shown) and guided by the wire guide pipes 11 to guide the wire guide pulley 1.
It reaches 0. The wire W runs substantially coaxially with the axis of the inner shaft 4 until reaching the wire guide pulley 10, and is directed by the wire guide pulley 10 toward the outer side in the substantially radial direction of the inner shaft 4. The wire W whose direction is changed by the wire guide pulley 10
Is guided by a plurality of wire guide pulleys 5d and 5e provided on the flyer arm 5b, and reaches the motor core 2.

In this winding device, the flyer 5 provided on the outer periphery of the fixed shaft 3 is rotated, and the wire W inserted through the inner shaft 4 provided in the through hole of the fixed shaft 3 is flyered. Since the wire guide pulley 10 guides the flyer 5 and the inner shaft 4, the flyer 5 and the inner shaft 4 are connected and synchronized by the connecting means.

In this illustrated example, as shown in FIG. 3 as well, a U-shaped groove 13 is formed in the inner shaft 4 so as to surround the axis thereof, and a portion having a shape complementary to the U-shaped groove 13 is formed. The U-shaped plate 14 is used as a bridging member having. As a result, in the mounting state shown by the solid line in the figure, the bottom surfaces of the pair of linear grooves of the U-shaped groove 13 and the linear portions of both arm portions of the U-shaped plate 14 are engaged with each other around the axis of the inner shaft 4. Can be combined. In this way, the rotation direction engaging means is configured.

The U-shaped plate 14 has a U-shaped groove 1
3 is attached so as to be inserted in a direction orthogonal to the axis of the inner shaft 4 as shown by an arrow A in FIG. In the mounted state, the lengths of both arm portions in the U shape of the U-shaped plate 14 reach the flyer main body portion 5a, and the free ends of both arm portions are attached to the flyer main body portion 5a by screws 15. It is fixed. Therefore, when the flyer main body 5a rotates, for example, as shown by the arrow B in FIG. 3, the U-shaped plate 14 is integrally formed.
Rotates about the axis of the inner shaft 4, and the rotational force of the flyer body 5a is transmitted to the inner shaft 4 by the above engagement of the U-shaped plate 14 and the U-shaped groove 13.

The fixed shaft 3 and the wire guide 8 are arranged so as to face each other with a gap between the respective axial end faces. On the axial end surface of the fixed shaft 3, a plurality of magnets 16 constituting magnetic attraction means are arranged at intervals in the circumferential direction, as shown in FIG. The axial end surface of the fixed shaft 3 and the axial end surface of the flyer body 5a are located on the same plane.

In the axial end face of the wire guide 8 facing the fixed shaft 3, in the illustrated example, the magnets corresponding to the magnets 16 are circumferentially spaced at the same intervals in the used state. A plurality of magnets 17 constituting the attraction means are arranged. The facing magnets 16 and 17 are a combination of magnetic poles that are magnetically attracted to each other. As a result, the wire guide 8 is magnetically attracted to the fixed shaft 3 and held in a stationary state. Further, either one may be made of a magnetic material.

Then, the toothed belt 6 is driven by the drive motor.
Winding the motor core 2 by combining the step of rotating the flyer 5 via the wire to hang the wire W on the tongue of the commutator 2b using the tongue cover 12 and the step of winding the wire W in the core slot of the motor core 2. I do.

At this time, the wire W is pulled out from the inner shaft 4 to the flyer 5 through the gap between the axial end faces of the fixed shaft 3 and the wire guide 8. Even if such a gap is provided, no problem occurs because the wire guide 8 and the fixed shaft 3 are magnetically attracted.

Further, as described above, the inner shaft 4
And the flyer 5 are connected using a U-shaped plate 14, and the inner shaft 4 is rotated by engagement with the linear groove portion 13a of the U-shaped groove 13 and by screw connection with the flyer 5, respectively. Are engaged in the direction. Therefore, it is easy to attach / remove the flyer 5,
Good maintainability.

Further, the wire guide 8 is connected to the fixed shaft 3 by the magnetic attraction force, so that when the wire guide 8 is replaced with another wire guide by changing the model of the motor core, the wire guide 8 resists the magnetic attraction force. It suffices to remove the guide 8 and not to loosen or tighten the screws.
The replacement work is easy. The wire guide 8 is supported by the protrusion 4a of the inner shaft 4 via the bearing portion 7, but as described above, the fitted state may be loose fitting, and the mounting / removing work is easy. Is.

Further, in the case where the wire guide is made stationary by using a gear mechanism as in the conventional example, there is eccentricity due to rattling of the gear structure, and the wire guide is highly accurate with respect to the core slot. There was a problem that it could not be positioned. On the other hand, according to the present invention, since the wire guide 8 is held stationary with respect to the fixed shaft 3, the wire guide 8 can be positioned with high accuracy, and thus the slot opening width is small. Winding of the motor core can be easily performed.

Further, as shown in FIG. 4, for example, the flyer 5 can be composed of a plurality of parts 21 and 22 divided in the axial direction. And both parts 21 of the illustrated example
A toothed pulley portion 21a, 22a is formed on the outer peripheral surface of the toothed tooth portion 22 so as to be continuous with each other across the mating portion of the two. The attached pulley is formed. In addition, a bearing 23 is provided on the inner peripheral surface of both components 21 and 22 for axially supporting both components 21 and 22, straddling the mating portion of the two, and the flyer 5 (21, 22) is provided via the bearing 23. Are rotatably supported by the fixed shaft 3.

By doing this, the drive pulley P and the toothed pulley (21a.
22a), the widthwise intermediate point of the toothed belt 6 can be made to coincide with the center of the bearing 23, and even if the toothed belt 6 as shown in the drawing is wide, the toothed pulley 6 The load acting on the bearing 23 is not biased on the bearing 23 in the belt width direction (axial direction). This allows
Since the rotation accuracy is improved and the shake can be eliminated, high speed rotation can be supported.

When a bearing is provided on a flyer made of one component, it is easy to provide the bearing on the axial end of the flyer. In such a case, the belt is attached to the axial end in relation to the other components. If the belt and the bearing are hung closer to the center side, the positions of the belt and the bearing in the axial direction cannot be matched. On the other hand, by configuring with a plurality of parts as described above, the positions of the belt and the bearing in the axial direction can be matched with a simple structure.

Although the flyer 5 is shown in the illustrated example, the same applies to the fixed shaft 3 and the inner shaft 4. Since the bearing can be easily arranged between the respective members at the center point where the load acts, runout and the like can be eliminated. As a result, higher speed rotation is possible.

[0029]

As described above, according to the present invention, when the inner shaft having the wire insertion path for guiding the wire to the flyer is synchronized with the rotation of the flyer, another rotating mechanism for synchronizing the flyer is not required. Both can be simply connected, and the winding device can be made compact. Further, since it is not necessary to provide a holding mechanism for the wire guide unlike the device described in the conventional example, the mounting space is not required, and the axial length can be made significantly shorter than the device described in the conventional example. it can. Therefore, the vibration during rotation is suppressed, the moment of inertia is reduced, and high-speed start-up and high-speed rotation are possible, so that the winding work time is shortened and the productivity can be improved.

At least one of the fixed shaft, the flyer, and the inner shaft may be composed of a plurality of parts.
For example, when a pulley for connecting with an external motor is provided on the outer peripheral surface of the flyer and the flyer is rotated by hanging a belt on the pulley, the flyer is composed of a plurality of parts divided in the axial direction, and the parts are combined. Bearings can be provided and supported across the parts. As a result, the position of the bearing is not limited to providing the bearing on the end face of the flyer, and the bearing can be freely set by providing the bearing at the intermediate portion in the axial direction, and the bearing can be supported by the bearing at a position corresponding to the midpoint in the width direction of the belt. You can Therefore, when a wide belt, for example, a toothed belt is used, the belt winding load can be prevented from deviating from the center of the bearing, the rotational accuracy can be improved, and runout can be eliminated. Can respond.

[Brief description of drawings]

FIG. 1 is a fragmentary front view of a winding device to which the present invention is applied.

FIG. 2 is a fragmentary plan view of the winding device of FIG.

FIG. 3 is an end view of the fixed shaft and the flyer taken along the line III-III in FIG.

FIG. 4 is a schematic longitudinal sectional view of a main part showing a case where a flyer is composed of a plurality of parts.

[Explanation of symbols] 1 Fixed stand 2 motor core 3 fixed axis 4 Inner shaft 5 flyers 6 toothed belt 7 Bearing 8 wire guide 9 Wire guide pipe 10 Guide pulley 13 U-shaped groove 14 U-shaped plate 16 ・ 17 Magnet

Claims (3)

[Claims] 1. A core of a motor core fixedly supported by a motor supporting means, the flyer being provided so as to pay out a wire while rotating around a fixed axis, and the wire being paid out from the flyer as the flyer rotates. A wire winding device having a wire guide for guiding the wire into a slot, the wire device having a wire insertion path for guiding the wire to the flyer, and an inner shaft rotatably provided coaxially in the fixed shaft. The winding device, wherein the inner shaft and the flyer are integrally connected via a connecting means. 2. The connecting means rotates a spanning member spanned between the inner shaft and the flyer, and corresponding portions of the inner shaft and the flyer and the spanning member. The winding device according to claim 1, characterized in that the winding device comprises rotational direction engaging means that engages in a direction. 3. The winding device according to claim 1, wherein at least one of the fixed shaft, the flyer, and the inner shaft is composed of a plurality of parts.